This method is used in the processing page to trigger a client-side function from the server,
after the processing is over.
It is available only when the callback is made asynchronously.
You can have unlimited number of ExecOnLoad methods, and as a parameter
you can have a javascript code or the name of a javascript function.
Here is a short example:
public string onClick(int myInt)
{
// ExecOnLoad examples
ExecOnLoad("alert('some text')");
ExecOnLoad("someCustomFunction()");
// return the number received as argument multiplied by 10
return myInt * 10;
}
See also ExecOnLoad example.
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